As somebody who's extremely uncomfortable with NSFW-ish stuff, I was very close to quitting twice (once after opening the Equipment menu for the first time and once at the tail end of the second beach cutscene), but I'm glad I pushed through since the good parts generally outweighed the discomfort.
This is the first entry I've seen that really made use of John's "You can cheat and mess with the map tiles if you want" clause, and the execution there is basically perfect. It keeps the spirit (and the most important parts of the walking path) of every map intact while making them look better and providing variety.
The ways you reused the maps were clever too. It might feel like padding if it wasn't for the conceit of the jam, but in this context it's a clever way to give the game some meat on its bones. And the way the time travel was used was fun in general, with lots of play between the two eras.